Journal
FEBS LETTERS
Volume 580, Issue 19, Pages 4576-4581Publisher
WILEY
DOI: 10.1016/j.febslet.2006.07.039
Keywords
protein biosynthesis; GTPases; elongation factor Tu; translation factors; structure determination; crystallography; drug design
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Elongation factor To (EF-Tu), the carrier of aa-tRNA to the mRNA-programmed ribosome, is the target of four families of antibiotics of unrelated structure, of which the action is supported by two basic mechanisms. Kirromycin and enacyloxin block EF-Tu(.)GDP on the ribosome; pulvomycin and GE2270 A inhibit the interaction of EF-Tu(.)GTP with aa-tRNA. The crystallographic analysis has unveiled the structural background of their actions, explaining how antibiotics of unrelated structures and binding modes and sites can employ similar mechanism of action. The selective similarities and differences of their binding sites and the induced EF-Tu conformations make understand how nature can affect the activities of a complex regulatory enzyme by means of low-molecular compounds, and have proposed a suitable approach for drug design. (c) 2006 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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